gas FORD MUSTANG 1969 Volume One Chassis

02-01-06

Brakes

02-01-06

side.
Refill the master cylinder reser-

voir after each wheel cylinder is bled

and install the master cylinder cover

and gasket. Be sure the diaphragm

type gasket is properly positioned in

the master cylinder cover. When the

bleeding operation is completed, the

fluid level should be filled to within

1/4 inch of the top of the reservoirs.

7. If the primary (front brake) sys-

tem is to be bled. Repeat steps 2

through 6 at the right front brake cal-

iper or cylinder and ending at the left

front brake caliper or cylinder.

8. On disc brake equipped models

be sure that the front brake pistons

are returned to their normal positions

and that the shoe and lining assem-

blies are properly seated by depressing

the brake pedal several times until

normal pedal travel is established.

9. Centralize the pressure differen-

tial valve. Refer to the Centralizing

the Pressure Differential Valve proce-

dures which follow.

PRESSURE BLEEDING

The Lincoln Continental hydraulic

brake system is to be bled only with

pressure bleeding equipment.

Bleed the longest lines first. The

bleeder tank should contain enough

new Ford Brake Fluid to complete the

bleeding operation. Use Ford Brake

Fluid — Extra Heavy Duty — Part

Number C6AZ-19542-A (ESA-

M6C25-A) or equivalent for all brake

applications. The brake fluid is col-

ored blue for identification purposes.

Do not mix low temperature brake

fluid with the specified brake fluid

during the bleeding operations. Never

re-use brake fluid that has been

drained from the hydraulic system.

The tank should be charged with ap-

proximately 10 to 30 pounds of air

pressure. Never exceed 50 pounds

pressure.

1.
Clean all dirt from the master

cylinder reservoir cover.

2.
Remove the master cylinder res-

ervoir cover and rubber gasket, and

fill the master cylinder reservoir with

the specified brake fluid. Install the

pressure bleeder adapter tool to the

master cylinder, and attach the bleed-

er tank hose to the fittng on the

adapter.

Master cylinder pressure bleeder

adapter tools can be obtained from

the various manufacturers of pressure

bleeding equipment. Follow the in-

structions of the manufacturer when

installing the adapter.

3.
If the master cylinder is

equipped with a bleed screw, loosen
the bleed screw and bleed the master

cylinder until the fluid is free of air

bubbles; then, tighten the bleed screw.

Do not use the secondary piston stop

screw, located on the bottom of the

master cylinder, to bleed the master

cylinder.

4.
If the rear wheel cylinders, the

secondary brake system, are to be

bled, position a 3/8 inch box wrench

(Fig. 9) on the bleeder fitting on the

right rear brake wheel cylinder. At-

tach a bleeder tube to the bleeder fit-

ting. The end of the tube should fit

snugly around the bleeder fitting.

5. Open the valve on the bleeder

tank to admit pressurized brake fluid

to the master cylinder reservoir.

6. Submerge the free end of the

tube in a container partially filled with

clean brake fluid, and loosen the

bleeder fitting.

7.
When air bubbles cease to ap-

pear in the fluid at the submerged end

of the bleeder tube, close the bleeder

fitting and remove the tube.

8. Repeat steps 3 through 7 at the

left rear wheel cylinder.

9. If the vehicle is equipped with

disc brakes, repeat steps 4 through 7,

starting at the right front disc caliper

and ending at the left front disc cali-

per.

On Lincoln Continental models the

front wheel and tire assemblies must
be removed to gain access to the

bleeder fittings on the calipers. Also

on Lincoln Continental models the

metering valve release rod must be

pulled outward and held a minimum

of 1/16 inch (Fig. 10) while bleeding

the primary brake system.

10.
If the vehicle contains drum-

type front brakes and the primary

(front) brake system is to be bled, re-

peat steps 4 through 7, starting at the

right front wheel cylinder ending at

the left front wheel cylinder.

11.
When the bleeding operation is

completed, close the bleeder tank

valve and remove the tank hose from

the adapter fitting.

12.
On disc brake equipped ve-

hicles,
be sure that the front brake

pistons are returned to their normal

positions and that the shoe and lining

assemblies are properly seated by dep-

ressing the brake pedal several times

until normal pedal travel is esta-

blished.

13.
Remove the Pressure Bleeder

Adapter Tool. Fill the master cylinder

reservoirs to within 1/4 inch of the

top.
Install the master cylinder cover

and gasket. Be sure the Diaphragm

type gasket is properly positioned in

the master cylinder cover.

14.
Centralize the pressure differen-

tial valve as follows.

METERING VALVE

BLEEDER RETAINER

SEE

VIEW A

RELEASE ROD

FIG. 10—Disc Brake Metering Valve—Lincoln Continental
HI 644-Aprocarmanuals.com

02-02-08
Brake System

02-02-08

Tool-HRE-8650

JUST SET TO DRUM

DIAMETER HERE . . .
FIND CORRECT BRAKE

SHOE DIAMETER HERE

H1416-A

FIG.
7
7—Adjusting Brake Shoes Using Tool HRE-8650

BOOT

BOOT

PISTON
. BLEEDER .

CYLINDER
SCREW RETURN SPRING PIST0N

H1385-B

FIG. 72—Brake Wheel Cylinder—Typical

DISASSEMBLY

1.
Remove the links and the rubber

boots from the ends of the brake cyl-

inder. Remove the pistons, cups, and

return spring from the cylinder bore

(Fig. 12).

2.
Remove the bleeder screw from

the cylinder.

INSPECTION

1.
Wash all parts in clean brake

fluid. Dry with compressed air.

2.
Replace scored pistons. Always

replace the rubber cups and dust

boots.
3.
Inspect the cylinder bore for

score marks or rust. If either condi-

tion is present the cylinder bore must

be honed. However, the cylinder

should not be honed more than 0.003

inch beyond its original diameter.

4.
Check the bleeder hole to be sure

that it is open.

ASSEMBLY

1.
Apply a light coating of heavy-

duty brake fluip! to all internal parts.

2.
Thread the bleeder screw into the

cylinder and tighten securely.

3.
Insert the return spring, cups,

and pistons into their respective posi-

tions in the cylinder bore (Fig. 12).
Place a boot over each end of the cyl-

inder. Bleed the brake system.

HYDRAULIC LINE REPAIR

Steel tubing is used throughout the

brake system with the exception of the

flexible hoses at the front wheels and

at the fear axle housing brake tube

connection (Figs. 17 thru 21).

Always bleed the applicable pri-

mary or secondary brake system after

primary or secondary brake system

hose or line replacement. Centralize

the pressure differential valve after

bleeding the system.

BRAKE TUBE

REPLACEMENT

If a section of the brake tubing be-

comes damaged, the entire section

should be replaced with tubing of the

same type, size, shape and length.

Copper tubing should not be used in a

hydraulic system. When bending

brake tubing to fit underbody or rear

axle contours, be careful not to kink

or crack the tube.

All brake tubing should be double

flared properly to provide good leak-

proof connections. Clean the brake

tubing by flushing with clean brake

fluid before installation.

When connecting a tube to a hose,

tube connector, or brake cylinder,

tighten the tube fitting nut to specified

torque with Milbar tool 1112-144 or

equivalent.

BRAKE HOSE

REPLACEMENT

A flexible brake hose should be re-

placed if it shows signs of softening,

cracking, or other damage.

When installing a new front brake

hose,
position the hose to avoid con-

tact with other chassis parts. Place a

new copper gasket over the hose fit-

ting and thread the hose assembly into

the front wheel cylinder. Engage the

opposite end of the hose to the brack-

et on the frame. Install the horsesho-

e-type retaining clip, and connect the

tube to the hose with the tube fitting

nut (Figs. 17 thru 21).

A rear brake hose should be in-

stalled so that it does not touch the

muffler outlet pipe or shock absorber.

Thread the hose into the rear brake

tube connector. Engage the front end

of the hose to the bracket on the

frame. Install the horseshoe-type re-

taining clip, and connect the tube to

the hose with the tube fitting nut.procarmanuals.com

02-02-12
Brake System

02-02-12

TUBE ASSY. REF.

2 A 040

TUBE ASSY. REF.

2B113-B

PRESSURE

IMPULSE VALVE

PROPORTIONING
TUBE

>Y.
2B253 ASSY REF TUBE

/W W '
Kth#
2263 ASSY. R.H. REF.

TUBE

2B112-E
2264 ASSY. L.H. REF.

2B329

ASSY. REF.

HOSE

C8OA-2B218-C ASSY.L.H.

C80A-26171-D ASSY.R.H.

2B269 ASSY. REF.

VIEWZ

INSTALLATION-DISC BRAKE ONLY
BEND CLIP TO RETAIN

TUBE AS SHOWN
-TUBE

VIEW IN CIRCLE T

382365-S36
WASHER

8M-2149

TUBE-2A040
INSTALLATION-DISC BRAKES SAME AS

DRUM BRAKES AND MAIN VIEW

EXCEPT AS SHOWN
TUBE-2267 R.H.

TUBE-2B253

TUBE 2B329

PRESSURE DIFFERENTIAL

VALVE

TUBE 2B329

VIEW IN

CIRCLE U

TYPICAL ^,

CES^^
CLI

BOLT-

VIEW IN CIRCLE N
WASHER

34808-S8

PART OF AXLE

VENT ON STATION

WAGON ONLY

VENT ASSEMBLY

TUBE ASSEMBLY-2265

STANDARD AND POWER DRUM

3RAKES TUBE ASSEMBLY-2B1T2

POWER DISC BRAKES

MANUAL DISC

TUBE-2263 R.H.
3 REQUIRED

BOLT- 3 REQUIRED

CHECK BRAKE HOSE CLEARANCE „

TO ALL COMPONENTS IN
2A448"

METAL/METAL JOUNCE AND

METAL/METAL REBOUND-
TUBE-2267

ARMOR-390, 428 ENGINES ONLY

8 CYLINDER ENGINE REAR AXLE ONLY

TUBE ASSEMBLY-2268 L.H.

PRESSURE DIFFERENTIAL

VALVE

- GROMMET- 2

jl^REQUIRED

EWYN

TUBE
VIEW P

ROUTING FOR STATION WAGON ONLY

TUBE-22.S5

TUBE-2263 R.H. 2264 L.H.

VIEW IN CIRCLE Y

TYPICAL 2 PLACES
CHECK BRAKE HOSE CLEARANCE TO ALL

COMPONENTS IN METAL/METAL JOUNCE,

METAL/METAL REBOUND AND FULL

INSIDE AND OUTSIDE TURNS

VIEWX

TYPICAL 2 PLACES

DRUM BRAKES

TUBE-2263 R.H

2264 L.H.
VIEW IN CIRCLE U

TYPICAL 4 PLACES

HOSE-2A448

BRAKE HOSE-2078

GASKET-2149 2 REQUIRED

VIEW IN CIRCLE W

TYPICAL 2 PLACES

DRUM BRAKES
LIP
REINFORCEMENT ASSEMBLY-2B222

APPLY ESB-M4632-A SEALER AROUND

STUDS AND SCREW HOLE ON

FLOOR PAN SIDE

TUBE
TUBE ASSEMBLY-226J)

VIEW R

TUBE

VIEW IN CIRCLE M

POWER DISC BRAKES

BRAKE HOSE MUST BE ASSEMBLED

WITH WHEELS STRAIGHT AHEAD.

STRIPE ON HOLE HOSE ASSEMBLY

MUST SHOW NO EVIDENCE OF TWIST.

H 1559-C

—Service Brake
System—Fairlane,
Montego
and
Falconprocarmanuals.com

TUBE ASSEMBLY-2B255

VIEW IN CIRCLES V

FUEL LINE

CLIP (4 REQUfRED)
PART OF AXLE ASSEMBLY

HOSE ASSEMBLY-2A448

FRAME

TUBE ASSEMBLY-2267

CHECK BRAKE HOSE

CLEARANCE TO ALL

COMPONENTS IN

METAL/METAL JOUNCE

AND METAL/METAL

REBOUND.
CLIP (3 REQUIRED)

TUBE ASSEMBLY-2267

BRAKE BOOSTER-2B195

HOSE-2A047
TUBE ASSEMBLY-2B255

TUBE ASSEM3LY-2420

[

TUBE-2263-C *
TUBE ASSEMBLY BRAKE TUBE

2268 ASSEMBLY

2267 R.R. BRAKE TUBE

ASSEMBLY
TUBE ASSEMBLY

2263

VIEW IN CIRCLES X

COVER-2A487

PEDAL PAD-2457

BRAKE PEDAL-2455

USE EXISTING NUTS

TUBE ASSEMBLY

2325r
TUBE ASSEMBLY

2264 L.H. 2263 R.H.
TUBE ASSEMBLY

2B171-C R.H.

23218-C L.H.
BOLT-381877-S2

(3REQUIRED)

CLIP-382088-S2

(3 REQUIRED)

ALL CONNECTIONS, TUBES, MASTER

CYLINDER AND FITTINGS MUST BE

FREE OF FLUID LEAKAGE WHEN

CHECKED AFTER ROAD TEST.
TUBE ASSY.-2A040

TUBE ASSY.-2B253
PRESSURE IMPULSE

VALVE

ALL BRAKE LINES, FITTINGS AND

FLEXIBLE HOSES MUST BE KEPT FREE

OF FOREIGN MATERIAL BEFORE

AND DURING ASSEMBLY OPERATIONS.
TUBE ASSEMBLY

2B255

PROPORTIONING

VALVE-2B328
GASKET-2149

(4 REQUIRED)

#LUBRICATE PIVOTS

CLIP-381799-S2

2REQUIRED

180°APART
BE LEAKPROOF

TUBE ASSEMBLY-2B255
6

w

Q

7T

3

CHECK BRAKE HOSE

CLEARANCE TO ALL COMPONENTS

IN METAL/METAL JOUNCE

METAL/METAL REBOUND AND FULL

INSIDE AND OUTSIDE TURNS.

BOLT

2 REQUIRED

TUBE ASSY. -2264

BRACKET ASSY.-2B328
O

6

H 1540-C

FIG. 20—Service Brake System—Thunderbird, Continental Markprocarmanuals.com

02-02-16
Brake System

02-02-16

fitting that connects the tube to the

cylinder. Do not pull the metal tube

away from the cylinder. Pulling the

tube out of the cylinder connection

will bend the metal tube and make in-

stallation difficult. The tube will sepa-

rate from the cylinder when the cylin-

der is removed from the backing

plate.

4.
On all except the front wheels on

Ford, Mercury, and Meteor models,

remove the wheel cylinder attaching

bolts and lock washers and remove the

cylinder. On the front wheel of Ford,

Mercury and Meteor models, remove

the nut and washer that attaches the

cylinder to the anchor pin. Remove

the cylinder from the anchor pin.

INSTALLATION

Wipe the end(s) of the hydraulic

line to remove any foreign matter be-

fore making connections.

1.
On all models except Ford, Mer-

cury and Meteor, to install a front

wheel cylinder, position the cylinder to

the backing plate. Install the two lock

washers and attaching bolts. Torque

them to specifications.

On Ford, Mercury and Meteor

models, to install a front wheel cylin-

der, position the cylinder on the an-

chor pin against the backing plate. In-

stall the washer and cylinder attaching

nut on the anchor pin, and torque it

to specification. Lock the washer re-

tainer securely.

2.
Install a new copper gasket over

the hose fitting. Thread the hose into

the cylinder and tighten it to specified

torque.

3.
Engage the opposite end of the

hose to the bracket on the frame. In-

stall the horseshoe-type retaining clip,

and connect the brake tube to the

hose with the tube fitting nut. Tighten

the nut to specification with tool

1112-144.

4.
To install a rear wheel cylinder,

place the rear wheel cylinder into po-

sition. Enter the tubing into the cylin-

der, and start the tube fitting nut into

the threads of the cylinder.

5.
Secure the cylinder to the back-

ing plate by installing the attaching

bolts and lock washers.

6. Tighten the tube fitting nut to

specification with tool 1112-144.

7.
Install the links in the ends of

the wheel cylinder, install the shoes

and adjuster assemblies, and adjust

the shoes as outlined in this section.

8. Adjust the brakes (Part 2-2, Sec-

tion 2). Install the brake drum and

wheel. Bleed the brakes and centralize

the differential valve as outlined in

Part 2-1, Section 2.
BRAKE BACKING PLATE

DRUM BRAKE

REMOVAL

1.
Remove the wheel and brake

drum. Disconnect the brake line from

the brake cylinder.

2.
Remove the brake shoe and ad-

juster assemblies and the wheel cylin-

der as outlined in this section. On the

rear wheels, disconnect the parking

brake lever from the cable.

3.
If the rear backing plate is being

replaced, remove the axle shaft from

the applicable rear axle as outlined in

Group 4, Part 4-2— Rear Axle, Sec-

tion 2, disengage parking brake cable

retainer from backing plate. Remove

the backing plate and gasket.

If the front backing plate is being

replaced, remove the bolts and nuts

that secure the backing plate to the

front wheel spindle and remove the

plate and gasket.

INSTALLATION

If a rear backing plate is to be re-

placed, position a new rear backing

plate and gasket on the attaching

bolts in the axle housing flange. Insert

parking brake cable into backing plate

and secure retaining fingers. Install

the rear axle shaft for applicable rear

axle.
Refer to Group 4, Part 4-2 —

Rear Axle, Section 2 for the proper

installation procedure.

1.
If the front brake backing plate

is to be replaced, position a new front

backing plate and gasket to the wheel

spindle and install the attaching bolts

and nuts.

2.
Install the wheel cylinder and

connect the brake line as outlined in

this section.

3.
Install the brake shoe and ad-

juster assemblies as outlined in this

section. On a rear brake, connect the

parking brake cable to the lever.

4.
Adjust the brake shoes (Section

2),
and install the brake drums and

wheels. Bleed the brake system and

centralize the differential valve as out-

lined in Part 2-1, Section 2.

DISC BRAKE CALIPER

ASSEMBLY

ALL MODELS EXCEPT

LINCOLN CONTINENTAL

Removal

Refer to Figs. 22 and 23.
BLEEDER SCREW FACING THIS DIRECTION^

BLEEDER SCREW

H 1641-A

FIG. 22—Floating Caliper

Installed

1.
Remove the front wheel cover.

Remove the wheel and tire assembly

from the hub and rotor assembly. Be

careful to avoid damage or interfer-

ence with the caliper splash shield or

bleeder screw fitting.

2.
Disconnect the brake line from

the caliper. Cap the hose to prevent

*he brake fluid from leaking from the

master cylinder.

3.
Remove the safety wire and the

two bolts that attach the caliper as-

sembly to the spindle.

4.
Lift the caliper assembly off the

rotor and place it on the bench.

Installation

1.
Position the caliper assembly on

the rotor, and mate the mounting bolt

holes in the caliper with those in the

spindle. It may be necessary to push

the caliper piston into the cylinder

bore to obtain clearance between the

shoe and lining assembly and the

rotor.

2.
Install the caliper to spindle at-

taching bolts and torque them to spe-

cification. The upper bolt must be

tightened first. Install the safety wire

on the bolts and twist the wire ends at

least five turns. Push the wire ends

against the spindle to avoid interfer-

ence with the brake hose and the

steering stop. Check to insure that the

rotor runs squarely and centrally be-

tween the two brake shoes.

3.
Position the brake hose fitting

with a new copper washer on each

side of the fitting on the caliper as-

sembly. Install the bolts and torque to

specification.

4.
Bleed the brake system and cen-

tralize the differential valve as out-

lined in Part 2-1. Check the masterprocarmanuals.com

02-02-17
Brake System

02-02-17

CALIPER PARTS

2B120 R.H.

2B121 L.H.

CALIPER ASS'Y

2B118 R.H.

2BU9L.H.

INSULATOR

CUP
2B2"

2B164
STABILIZER

2B295

FAIRLANE, MONTEGO, FALCON,

MUSTANG AND COUGAR
SEAL

2B115

2207

BOOT
20310-S

34806 S \ INNER BEARING

w CONE AND ROLLER

1201

CUP
ANCHOR PLATE

2B293 L.H.

2B292 R.H.

CONE AND ROLLER

1216

GREASE SEAL

1190

ADJUSTING NUT

374504-S
3105-R.H.

3106-L.H.

ROTOR SPLASH SHI

2K004-R.H.

2K005-L.H.

COVER-1130

1102

H 1670-A

FIG. 23—Disc Brake—Disassembled—All Models Except Lincoln

cylinder fluid level and add the speci-

fied fluid, as required. Pump the

brake pedal several times to actuate

the piston seals and to position the

shoe and lining assemblies.

5. Install the wheel and tire assem-

bly and the wheel cover.

6. Road test the vehicle.
LINCOLN CONTINENTAL

Removal

Refer to Fig. 24.

1.
Remove the front wheel cover.
Remove the wheel and tire assembly

from the hub and rotor assembly. Be

careful to avoid damage or interfer-

ence with the caliper splash shield,

bleeder screw fitting or transfer tube.

2.
Disconnect the steel brake line

transfer tube from the caliper (Fig.

21).
Leave the steel tube connected to

CALI PER PARTS-2B120-R.H. -2B121-L.H.

CALIPER ASSEMBLY

*2B118-R.H.

•2B119-L.H.
34811-S

SPINDLE
379726-S
INBOARD HOUSING

PISTON SEALS (4)-2B115

/PISTONS (4) -2196 OUTBOARD HOUSING

T BOOTS (4) 2207
CLIP

34806-S
INNER BEARING

CONE AND ROLLER

1201

GASKET

3105-R.H.
2B16°

3106-L.H.

ROTOR SPLASH
SHI
EL

1102
SHOE AND LINING

ASSEMBLIES -2018

COVER-US'!

H 1650-A

FIG. 24—Disc Brake Disassembled—Lincoln Continentalprocarmanuals.com

02-02-19
Brake System

02-02-19

that the tabs on the shoe flanges seat

fully against the caliper bridges (Fig.

25).

2.
Install the caliper splash shield

and secure the shield to the caliper

with two retaining bolts (Fig. 4).

3.
Pump the brake pedal several

times until a firm pedal is obtained

and the shoe and lining assemblies are

properly seated.

4.
Install the wheel and tire assem-

bly on the hub and rotor assembly.

5.
Check and refill the master cyl-

inder reservoir with specified brake

fluid as required.

6. Road test the car.

It should not be necessary to bleed

the system after a shoe and lining re-

placement.

FRONT WHEEL HUB AND

ROTOR ASSEMBLY-

DISC BRAKES

REMOVAL

1.
Remove the wheel and tire from

the hub (Figs. 23 and 24). Be careful

to avoid damage or interference with

the bleeder screw fitting. On Lincoln

Continental models be careful to avoid

damage to the caliper splash shield or

transfer tube.

2.
Remove the caliper assembly

from the spindle and the rotor. If the

caliper does not require servicing, it is

not necessary to disconnect the brake

hose or remove the caliper from the

vehicle. Position the caliper out of the

way, and support it with a wire to

avoid damaging the caliper or stretch-

ing the hose. Insert a clean cardboard

spacer between the linings to prevent

the piston from coming out of the cyl-

inder bore while the caliper is re-

moved.

Handle the rotor and caliper assem-

blies in such a way as to avoid defor-

mation of the rotor and nicking,

scratching or contamination of the

brake linings.

3.
Remove the grease cap from the

hub.
Remove the cotter pin, nut lock,

adjusting nut, and flat washer from

the spindle. Remove the outer bearing

cone and roller assembly.

4.
Remove the hub and rotor as-

sembly from the spindle.

INSTALLATION

1.
If the rotor is being replaced, re-

move the protective coating from the

new rotor with carburetor degreaser.

Pack a new set of bearings with speci-
fied grease (M-1C75B), and install the

inner bearing cone and roller assembly

in the inner cup. Pack grease lightly

between the lips of a new grease seal

and install the seal (Figs. 23 and 24).

If the original rotor is being in-

stalled, make sure that the grease in

the hub is clean and adequate, that

the inner bearing and grease seal are

lubricated and in good condition, and

that the rotor braking surfaces are

clean.

2.
Install the hub and rotor assem-

bly on the spindle.

3.
Lubricate and install the outer

wheel bearing, washer and adjusting

nut.

4.
Adjust the wheel bearings to

specification, and then install the nut

lock, cotter pin, and grease cap. The

wheel bearing adjustment is especially

important with disc brakes.

5. Mount the caliper assembly on

the spindle following the Disc Brake

Caliper Assembly Installation proce-

dure in this section.

DISC BRAKE ROTOR

SPLASH SHIELD

REMOVAL

1.
Remove the caliper and the hub

and rotor assembly as outlined under
Removal in the foregoing procedure

(it is not necessary to disconnect hy-

draulic connections).

2.
Remove the three bolts that at-

tach the splash shield to the spindle,

and remove the shield (Figs. 23 and

24).

3.
Remove and discard the splash

shield to spindle gasket.

INSTALLATION

1.
Install a new splash shield to

spindle gasket.

2.
If the shield is bent, straighten it

out before installation. Position the

shield to the mounting bracket, install

the attaching bolts, nuts and torque

them to specification.

3.
Install the hub and rotor assem-

bly and the caliper as outlined under

Installation in the foregoing proce-

dure.

DUAL MASTER CYLINDER—

NON POWER BRAKES

FORD, MERCURY

AND METEOR

Removal

Refer to Fig. 26.

BUSHING

HAIRPIN

RETAINER

BUSHING

STOPLIGHT SWITCH

13480
HI 637-A

FIG. 26—Dual Master Cylinder Installation— Non Power Brakes

Ford,
Mercury, and Meteorprocarmanuals.com

02-02-20
Brake System

02-02-20

1.
Disconnect the stoplight switch

wires at the connector. Remove the

spring retainer. Slide the stop light

switch off the brake pedal pin just far

enough to clear the end of the pin,

then liftfthe switch straight upward

from the pin. Use care to avoid switch

damage during removal.

2.
Slide the master cylinder push

rod and the nylon washers and bush-

ings off the brake pedal pin.

3.
Remove the brake tube from the

primary and secondary outlet ports of

the master cylinder.

4.
Remove the cap screws and lock-

washers that secure the master cylin-

der to the dirSh panel and lift the cyl-

inder forward and upward from the

vehicle.

Installation

1.
Position the boot on the push

rod and secure the boot to the master

cylinder. Carefully insert the master

cylinder push rod and boot through

the dash panel opening and position

the master cylinder on the panel.

2.
Install the cap screws at the dash

panel and torque them to specifica-

tion.

3.
Coat the nylon bushings with

SAE 10W oil. Install the nylon wash-

er and bushing on the brake pedal pin.

4.
Position the stop light switch on

the brake pedal pin, install the nylon

bushing and washer and secure them

in position with the spring retainer.

5.
Connect the wires at the stop

light switch connector.

6. Connect the brake lines to the

master cylinder leaving the brake line

fittings loose.

7.
Fill the master cylinder with the

specified brake fluid to within 1/4

inch of the top of the dual reservoirs.

Use Ford Brake Fluid— Extra Heavy

Duty-Part Number C6AZ-19542-A

(ESA-M6C25-A) or equivalent for all

drum brake applications. The extra

heavy duty brake system fluid is col-

ored blue for identification. Do not

mix low temperature brake fluids with

the specified fluid for the power disc

brake system.

8. Bleed the dual-master cylinder

and the primary and secondary brake

systems. Centralize the pressure dif-

ferential valve. Refer to Hydraulic

System Bleeding and Centralizing of

the Differential Valve, Part 2-1, Sec-

tion 2 for proper procedure.

9. Operate the brakes several times,

then check for external hydraulic

leaks.
FAIRLANE, MONTEGO,

FALCON, MUSTANG AND

COUGAR

Removal

Refer to Figs. 27 and 28.

1.
Working from inside the vehicle

below the instrument panel, disconnect

the master cylinder push rod from the

brake pedal assembly. The push rod

cannot be removed from the master

cylinder.

2.
Disconnect the stoplight switch

wires at the connector. Remove the

hairpin retainer. Slide the stop light

switch off the brake pedal pin just far

enough to clear the end of the pin,

then lift the switch straight upward

from the pin. Use care to avoid switch

damage during removal.

3.
Slide the master cylinder push

rod and the nylon washers and bush-

ings off the brake pedal pin.

4.
Remove the brake tubes from

the primary and secondary outlet

ports of the master cylinder.

5.
Remove the lock nuts or cap

screw and lockwashers that secure the

master cylinder to the dash panel and

lift the cylinder forward and upward

from the car.
Installation

Refer to Figs. 27 and 28.

1.
Position the boot on tie push

rod and secure the boot to the master

cylinder. Carefully insert the master

cylinder push rod and boot through

the dash panel opening.

2.
On Fairlane, Falcon or Montego

models, position the gasket and mas-

ter cylinder on the mounting studs on

the dash panel. Install the lock nuts

on the studs at the dash panel and

torque them to specification.

3.
On Mustang or Cougar models,

position the gasket and master cylin-

der on the dash panel. Install the re-

taining screws and torque them to

specification. Coat the nylon bushings

with SAE 10W oil. Install the nylon

washer and bushing on the brake

pedal pin.

4.
Position the stop light switch on

the brake pedal pin, install the nylon

bushing and washer and secure them

in position with the spring retainer.

5.
Connect the wires at the stop

light switch connector.

6. Connect the brake lines to the

master cylinder and tighten to speci-

fied torque.

7.
Fill the master cylinder with the

specified brake fluid to within 1/4

MASTER CYLINDER

IDENTIFICATION
UPPER STUD

SHAFT (AUTOf/lATIC

TRANSMISSION)

CLIP

BRAKE PEDAL

BUSHING SUPPORT

TUBE-2B253

TUBE-2A040
CLUTCH

PEDA_

LOWER STUD
STOP LITE

SWITCH

/ 13480

MASTER CYLINDER

PUSH ROD
BRAKE PEDAL

H 1556-C

FIG. 27—Dual Master Cylinder Installation—Non Power Brake

Fairlane, Montego, and Falconprocarmanuals.com

02-02-39
Brake System

02-02-39

MAJOR REPAIR OPERATIONS

BRAKE DRUM REFINISHING

Minor scores on a brake drum can

be removed with sandpaper. A drum

that is excessively scored or shows a

total indicator runout of over 0.007

inch should be turned down. Remove

only enough stock to eliminate the

scores and true up the drum. The refi-

nished diameter must not exceed 0.060

inch oversize.

Check the inside diameter of the

brake drum with a brake drum mi-

crometer (Tool FRE-14^1).

If the drum diameter is less than

0.030 inch oversize after refinishing^

standard lining may be installed. If

the drum diameter is 0.030—0.060

inch oversize after refinishing, oversize

lining must be installed.

After a drum is turned down, wipe

the refinished surface with a cloth

soaked in clean denatured alcohol. If

one drum is turned down, the opposite

drum on the same axle should also be

cut down to the same size.

ROTOR REFINISHING

Rotunda Disc Brake Attachment,

FRE-2249-2, is the only recommended

tool to refinish the disc brake rotors.

The step-by-step resurfacing procedure

provided with the tool must be ad-

hered to.

The finished braking surfaces of the

rotor must be flat and parallel within

0.0007 inch; lateral runout must not

exceed 0.003 inch total indicator read-

ing, and the surface finish of the brak-

ing surfaces are to be 80/15 micro

inches. The minimum limiting dimen-

sions (Figs. 11 and 12, Part 2-1) from

the inboard bearing cup to the out-

board rotor face and from the inboard

bearing cup to the inboard rotor face

must be observed when removing ma-

terial from the rotor braking surfaces.

On all models except Lincoln Con-

tinental, the limiting dimensions are to

be measured with a ball and gage bar

(Rotunda Kit FRE-70160).

BRAKE SHOE RELINING

Brake linings that are worn to with-

in 1/32 inch of the rivet head or are

less than 0.030 inch thick (bonded lin-

ing) or have been contaminated with

brake fluid, grease or oil must be re-

placed. Failure to replace worn linings

will result in a scored drum. When it
is necessary to replace linings, they

must also be replaced on the wheel on

the opposite side of the vehicle.

Inspect brake shoes for distortion,

cracks, or looseness. If this condition

exists,
the shoe must be discarded. Do

not attempt to repair a defective brake

shoe.

1.
Wash the brake shoes thoroughly

in a clean solvent. Remove all burrs

or rough spots from the shoes.

2.
Check the inside diameter of the

brake drum with a brake drum mi-

crometer (tool FRE-1431). If the di-

ameter is less than 0.030 inches over-

size,
standard lining may be installed.

If the diameter is 0.030—0.060 inches

oversize, oversize lining should be in-

stalled.

3.
Position the new lining on the

shoe.
Starting in the center, insert and

secure the rivets, working alternately

towards each end. Replacement lin-

ings are ground and no further grind-

ing is required.

4.
Check the clearance between the

shoe and lining. The lining must seat

tightly against the shoe with not more

than 0.008 inch clearance between any

two rivets.

RETAINER - 2B245
DUAL MASTER CYLINDER

DISASSEMBLY

1.
Clean the outside of the master

cylinder and remove the filler cover

and diaphragm. Pour out any brake

fluid that remains in the cylinder. Dis-

card the old brake fluid.

2.*
Remove the secondary piston

stop bolt from the bottom of the cyl-

inder (Figs. 40 and 41).

3.
Remove the bleed screw, iL re-

quired.

4.
Depress the primary piston and

remove the snap ring from the retain-

ing groove at the rear of the master

cylinder bore (Fig. 42). Remove the

push rod and the primary piston as-

sembly from the master cylinder bore.

Do not remove the screw that retains

the primary return spring retainer, re-

turn spring, primary cup and protec-

tor on the primary piston. This assem-

bly is factory pre-adjusted and should

not be disassembled.

5.
Remove the secondary piston as-

sembly. Do not remove the outlet tube

seats,
outlet check valves and outlet

SECONDARY SYSTEM

BRAKE OUTLET
COVER -2166

GASKET-2167

MASTER CYLINDER -2155

SNAP RING -7821

BOOT

PUSH ROD

PRIMARY PISTON

ASSEMBLY - 2169

tTUBE SEAT-

2B220
* SECONDARY PISTON

ASSEMBLY - 2A502

• NOT USED ON POWER BRAKE EQUIPPED VEHICLES

fNOT SERVICED

•REPLACE AS AN ASSEMBLY ONLY

H 1499-B

FIG. 40— Dual Master Cylinder Disassembled—Except Disc Brakesprocarmanuals.com

02-02-40
Brake System

02-02-40

RETAINER - 2B245

PRIMARY PISTON

ASSEMBLY-2169

GASKET-2167

RETURN SPRING

RETAINER

\ CUP

\\PROTECTOR

^\i # PISTON
fNOT SERVICED

* REPLACE AS

ASSEMBLY ONLY

*O-RING

PUMPING CUP

tVALVE

2175

SECONDARY

BRAKE SYSTEM

OUTLET
*SECONDARY PISTON

ASSEMBLY-2A502

H 1550-B

FIG. 41—Dual Master Cylinder Disassembled—Disc Brakes

check valve springs from the master

cylinder body.
open and free of foreign matter. Use

an air hose to blow out dirt and clean-

ing solvent. Place all parts on a clean

pan or paper.

3.
Inspect the master cylinder bore

for signs of etching, pitting, scoring or

rust. If it is necessary to hone the

master cylinder bore to repair dam-

age,
do not exceed allowable hone

specifications.

ASSEMBLY

1.
Dip all parts except the master

cylinder body in clean Rotunda Extra

Heavy Duty Brake Fluid.

2.
Carefully insert the complete

secondary piston and return spring as-

sembly in the master cylinder bore.

3.
Install the primary piston assem-

bly in the master cylinder bore.

4.
Depress the primary piston and

install the snap ring in the cylinder

bore groove.

5.
Install the push rod, boot and re-

tainer on the push rod, if so equipped.

Install the push rod assembly into the

primary piston. Make sure the retain-

er is properly seated and holding the

push rod securely.

6. Position the inner end of the

push rod boot (if so equipped) in the

master cylinder body retaining groove.

7.
Install the secondary piston stop

INSPECTION AND REPAIR

1.
Clean all parts in clean isopropyl

alcohol, and inspect the parts for

chipping, excessive wear or damage.

When using a master cylinder repair

kit, install all the parts supplied.

2.
Check all recesses, openings and

internal passages to be sure they are

Snap Ring Pliers

SNAP RING

H1477-C

FIG. 42—Removing Snap

Ring—Typical
INNER BRAKE

SHOE AND LINING

ASSEMBLY-2019
OUTER SHOE

RETAINING CLIPS

2066

STABILIZER

2B295

LOCATING PIN

2B296

ANCHOR PLATE

2B293(L.H.)

2B292 (R.H.)
MOVABLE CALIPER

2B119(L.H.)

2B118(R.H.)

H 1573-C

FIG. 43—Caliper Assembly—Disassembled-

All Models Except Lincoln Continentalprocarmanuals.com